在工程設計(ji)(ji)中，常遇(yu)到廠(chang)際(ji)管(guan)道（Pipeline between the Plants or District）的設計(ji)(ji)，不同的國內外規范，設計(ji)(ji)要(yao)求可能(neng)不同。

  在GB 50160《石油(you)化工企業設計防(fang)火規(gui)范(fan)》中，廠際管道(dao)指敷設在石油(you)化工企業、油(you)庫(ku)、油(you)氣碼頭(tou)等不同圍墻界區之(zhi)間且通過(guo)公共(gong)區域、長(chang)度小于等于30km的輸油(you)輸氣管道(dao)。

  在GB/T 51359《石(shi)(shi)(shi)(shi)油(you)化工(gong)(gong)廠際管(guan)道工(gong)(gong)程(cheng)技術標準》規(gui)范(fan)中(zhong)，廠際管(guan)道指石(shi)(shi)(shi)(shi)油(you)化工(gong)(gong)及煤化工(gong)(gong)企業、石(shi)(shi)(shi)(shi)油(you)庫(ku)、石(shi)(shi)(shi)(shi)油(you)化工(gong)(gong)碼頭(tou)等(deng)相互間(jian)的輸送可(ke)燃氣(qi)體、液化烴(jing)和可(ke)燃液體管(guan)道（石(shi)(shi)(shi)(shi)油(you)化工(gong)(gong)園區除外(wai)）。其特征(zheng)是(shi)敷設在石(shi)(shi)(shi)(shi)油(you)化工(gong)(gong)及煤化工(gong)(gong)企業、石(shi)(shi)(shi)(shi)油(you)庫(ku)、石(shi)(shi)(shi)(shi)油(you)化工(gong)(gong)碼頭(tou)等(deng)圍(wei)墻或用地(di)邊(bian)界線(xian)之(zhi)間(jian)且通過(guo)公共區域，長度小于或等(deng)于30km。

  廠(chang)(chang)際管(guan)道(dao)的(de)(de)特(te)點(dian)是企(qi)業(ye)圍墻或用(yong)地(di)邊(bian)界線(xian)之(zhi)間(jian)(jian)、通過公共(gong)區(qu)域，長(chang)(chang)(chang)度(du)≤30km。廠(chang)(chang)際管(guan)道(dao)長(chang)(chang)(chang)度(du)限定(ding)在30km，考慮了(le)與長(chang)(chang)(chang)距離(li)輸(shu)(shu)(shu)油(you)管(guan)道(dao)的(de)(de)兩切斷閥間(jian)(jian)距相(xiang)協調。一般情(qing)況下，長(chang)(chang)(chang)距離(li)輸(shu)(shu)(shu)送(song)油(you)氣管(guan)道(dao)長(chang)(chang)(chang)度(du)在50km以上，有(you)中間(jian)(jian)泵站(zhan)或加(jia)壓站(zhan)等特(te)征，而廠(chang)(chang)際管(guan)道(dao)通常是多條管(guan)道(dao)并列敷設，無中間(jian)(jian)泵站(zhan)或加(jia)壓站(zhan)，這一長(chang)(chang)(chang)度(du)也基本涵蓋了(le)目前石油(you)化工(gong)企(qi)業(ye)不(bu)同圍墻或用(yong)地(di)邊(bian)界之(zhi)間(jian)(jian)的(de)(de)油(you)氣管(guan)道(dao)長(chang)(chang)(chang)度(du)。廠(chang)(chang)際管(guan)道(dao)不(bu)屬于地(di)區(qu)輸(shu)(shu)(shu)油(you)（輸(shu)(shu)(shu)氣）管(guan)道(dao)，也不(bu)包括(kuo)石油(you)化工(gong)園區(qu)內公用(yong)的(de)(de)輸(shu)(shu)(shu)送(song)可燃氣體(ti)、液化烴和(he)可燃液體(ti)的(de)(de)管(guan)道(dao)。一般定(ding)義廠(chang)(chang)際管(guan)道(dao)為GC類。